Middel-ríce

According to the Old English Dictionary:

es;

middel-ríce

n. A middle kingdom, a kingdom lying between two others :-- Earnulf wunode on þǽm londe be-eástan Rín, and Róþulf féng tó þǽm middelríce, and Oda tó þǽm westdǽle, Chr. 887; P. 80, 24. middel-rice